1 files changed, 3 insertions, 0 deletions
diff --git a/src/ckutil.c b/src/ckutil.c
index 9bfa139..272f737 100644
--- a/src/ckutil.c
+++ b/src/ckutil.c
@@ -113,6 +113,9 @@ void str_join_dirname_with_basename(char *ret, const char *dirname,
 }
 
 int str_is_empty(const char *s) {
+  if (!s) {
+    return 1;
+  }
   while (*s != '\0') {
     if (!isspace((unsigned char)*s)) {
       return 0;